对BroadcastReceiver进行单元测试

import android.content.Context;
import android.content.Intent;
import android.support.v4.content.LocalBroadcastManager;
import androidx.test.platform.app.InstrumentationRegistry;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;

public class MyBroadcastReceiverTest {
    private Context context;
    private MyBroadcastReceiver receiver;

    @Before
    public void setup() {
        context = InstrumentationRegistry.getInstrumentation().getContext();
        receiver = new MyBroadcastReceiver();
        // 注册BroadcastReceiver
        LocalBroadcastManager.getInstance(context).registerReceiver(receiver, null);
    }

    @After
    public void cleanup() {
        // 注销BroadcastReceiver
        LocalBroadcastManager.getInstance(context).unregisterReceiver(receiver);
    }

    @Test
    public void testBroadcastReceiver() {
        // 准备测试数据
        Intent intent = new Intent("com.example.MY_ACTION");
        intent.putExtra("message", "Hello, World!");

        // 发送广播
        LocalBroadcastManager.getInstance(context).sendBroadcast(intent);

        // 验证操作
        assertNotNull(receiver.getLastReceivedIntent());
        assertEquals("com.example.MY_ACTION", receiver.getLastReceivedIntent().getAction());
        assertEquals("Hello, World!", receiver.getLastReceivedIntent().getStringExtra("message"));
    }
}